Adjustable window-sash-fastening device



28 1927. June A. INGMAN c ADJUSTABLE WINDOW SASH FASTENING DEVICE Filed Oct. 16. 1926 4 N g W A 2 J m n Patented June 28, 1927.

ED TES amen PATENT OFFICE.

Aunnnw INGMAN, or MAnsnrInLn, onneon.

ADJUSTABLE, WINDGW-SA3H-FASTENING DEVICE,

, Application fil ed ,October 16, 1926, Seria1 N 0. 141,993.

My invention relates to improvements in window sash fasteners, and more particularly to fasteners of this character in which the sash retaining'means' is adjustable to permit either of the window sashes-to be moved a predetermined distance relative to the other, the sash retaining nieansalsoserving to positively lock the sashes against relatent in either direction when the fastening device is not being used.

Referring now to the accompanying drawings which are made a part hereof, and on which similar ref rence characters indicate similar parts:

Fig. 1 is a front elevation of my improved window sash fastener with the parts shifted to permit either sash to be moved relative to the other, as indicated by dotted lines.

Fig. 2 is a side elevation of the sash fastener shown in Fig. 1, with the parts shifted to lock both sashes in closed position. In this figure the parts are also shown, by dotted lines, adjusted to permit either sash to be moved a predetermined distance relative to the other, and,

Fig. 8 is a top plan view ofmy fastener device, partly in section, with the parts in locked position, the parts being also shown unlocked in dotted lines and swung around at right angles to locked position.

In the drawings, the portions designated as A represent the upper sash, and B the lower sash of a window.

Secured to one of the pane-supporting upright members of the upper sash A, l have shown a bracket member 2, the lower end of which is formed with an apertured extension 3, in which the upper reduced end 4 of the cylindrical adjustmem bar 5 is fixed. The adjustment bar 5 is. preferably round in cross section, and is provided at regular intervals alongone side with horizontal cutsor slots 6, with which the fastening member 7, later to be described, co-operates.

At the lower end of the cylindrical bar 5 is formed a lateral extension or bracket 8,

which is adapted to be secured to the upper sleeve which is slidably and rotatab .mounted on the cylindrical bar 5.

face of thelower cross rail member of the upper sash A,

The fastening member 7 consists of a ly An arm 9 forms a lateral extension of the, lower end ofthe sleeve 7 and serves as, a stop to limit the upward movement'ofthe lower sash B, when in locked position, as will be readily understood from the following description. The sleeve 7 is slotted immediately above the arm 9 in which a locking cam or disk 10, pivoted at 11 on the arm 9, is adapted to be moved to engage a slot 6 in the bar 5 to securely hold the sleeve 7 and arm 9 in ad-- justed position on the bar.

It will thus be seen that, when it is'desired to set the device to permit the lower sash tobe raised a predetermined distance,

the cam disk 10 is swung on its eccentric pivot 11 until it is free of the bar 5. The

fastening member is then free to he slid onthe bar 5 the desired height, with the arm 9 extending at right angles to the window sash A, and in the path of the upper end of the sash B. The cam disk 10 is again shifted on its eccentric pivot causing the disk to move back into the slot in the sleeve 7 and enter a corresponding slot 6 in the side of the bar 5. The parts are thus locked firmly together with the arm 9 positioned to arrest further upward movement of the lower sash. It will be noted that, when it is desired to discontinue the use of the fastenilng device to permit the lower sash to be raised to its full extent, the cam disk 10 is again moved on its pivot, as above explainec and the arm 9 swung around on the bar 5 as an axis until the arm 9 is out of of the upper end of the lower sash, as shown in Fig. 1 and dotted line position in Fig. 3.

In Fig. 2 with the cam disk 10 engaged in the lowermost slot 6 in the bar 5, the arm 9 in this position serving to prevent movement of either sash from closed position.

That I claim is 1. In a window sash fastener, a bar having brackets at opposite ends -thereof for attachment to the upper window sash, said bar having a series of horizontal slots in one side thereof, a sash fastening member slidably mounted on said bar, and a cam member pivoted on said fastening member and operable to engage the slots in said bar.

2. In a Window sash fastener, a cylindrithe p aththe fastening device is shown cal bar having means for securing the bar in a vertical position on the upper Window sash, said bar having a series of horizontal slotsin one side thereof, a sash fastener slidably and rotatably mounted on said rod, and a member eccentrically pivoted in said fastener and operable to engage a slot in said bar.

8. In a Window sash fastener, a cylindrical bar, a sleeve member slidably and rotatably mounted on said bar, an arm extending at substantially right angles to said sleeve, said sleeve being transversely slotted immediately above said arm, and a locking disk eccentrically pivoted on said arm and extending through the slot in said sleeve to engage said bar.

4. In a WlIlClOW sash fastener,

a cylindrical bar,

said bar having a vertical series of horizontal slots in one side thereof, a sash fastening device slidably and rotatably mounted on said bar, said fastener comprising a horizontally slotted sleeve and an arm formed on one side of said sleeve adjacent the slot, and a cam disk eccentrically pivoted on said arm and extending into the slot in said sleeve, whereby said fastening device may be adjustably secured to said bar throughout the length of said rod to ]imit the movement of one sash relative to the other, and may be rotated on said bar at any point throughout itsadjustable range to permit the sashes to be moved unrestricted. 7

In testimony whereof I hereunto atlix my signature.

ANDREW IN GMAN. 

